Harry's Pizza Parlor produced 10,000 large pizzas last year that sold for $10 each. This y
ear Harry's produced 11,000 large pizzas (identical to last year's pizzas) but sold them for $12 each. Based on this information, we can conclude that Harry's production of large pizzas
a) did not change either nominal or real GDP from last year.
b) increased real GDP from last year, but nominal GDP was unaffected.
c) increased both nominal and real GDP from last year.
d) increased nominal GDP from last year, but real GDP was unaffected.